A virtual swimming challenge where we are asking you to swim 21 miles over 2 months (June and July) at your own pace and at a location of your choice. We will support you every step of the journey and will offer tips to raise vital funds for Macmillan Cancer Support.

Click sign up and fill in the registration form, you’ll then receive an email from JustGiving and an email from us to confirm you’re all signed up.

If you experiences any difficulties signing up, please email swimming@macmillan.org.uk or call 0300 1000 200 (Monday to Friday, 9am-5pm) for assistance.

No, it is completely free to sign up to Swim It!

Start swimming in your chosen location on June 1st and make sure to get to that 21 miles and reach your fundraising target by the end of July. If you complete your 21 miles withing the challenge months, you’ll receive your very own Swim It medal!

Lengths equivalent to a standard 25m pool (rounded up to a full length).

Here is a breakdown of how many lengths you would need to do per swim, depending on how many swims you plan to do each week. We have based this on taking the fill 8 weeks to complete the challenge.

Absolutely! You can complete the swim wherever works for you, and you can mix it up.

The beauty of this event is that you’ll get stronger as you go, but there’s no need for extra training. You’ll be doing it at your own pace, in your own time, and over the course of two months. If you do want any extra training tips, click here to see our swimming training guides.

If you have any concerns about your health or fitness please speak to your doctor first.

Once you've raised your first £10, you'll receive your swimming cap (please note this can take up to 2 weeks to arrive in the post). You can always self-donate £10 once you've set up your fundraiser to cover the swimming cap and show your supporters you’re committed to the challenge!

If you haven't yet received this after 2 weeks, please email your address to swimming@macmillan.org.uk with the subject: 'Swim It - Swimming Cap' and we will get this to you as soon as possible.

You are more than welcome to complete your miles as a team, however everyone in the team will need to register individually for their own fundraising page. This is so we can send you emails about your challenge, and each person in the team can track their progress, as well as receive any incentive items should they meet the criteria.

If you are part of a corporate group, then please email swimming@macmillan.org.uk and we’ll be able to advise on the best way of setting this up.

Yes, absolutely! The beauty of Swim It is that you can do your swim in any location. Your JustGiving page allows you to accept donations from friends and family all over the world. However, please note that we can only send rewards like your swimming cap within the UK.

Swim It welcomes all ages and abilities.* It doesn’t matter if you can swim one length or two hundred.

*Under 18s are welcome to take part but they’ll need an adult to register on their behalf as we can only communicate with an adult. Under 18’s should not register with their own details, and the Facebook group is strictly for supporters over the age of 18.

Join our Facebook group here https://www.facebook.com/groups/swimit. This is a great place to meet fellow swimmers and share your top Swim It tips.

This is where you can keep a track of how far you’ve swum and your fundraising, all in one place. You can personalise it by adding your photo, your story and regular updates.

It's where you'll start earning virtual badges for both your swimming and your fundraising. It’s easy to share your profile page with friends and family, so you can show off how you're getting on and they can support you by making a donation.

When setting up your Just Giving page you will have chosen a password - don’t worry if you've forgotten it!

You can check your emails from Just Giving to retrieve your login details, or head to the Just Giving Help & Support page for help logging into your account.

It’s so motivating to see how far you’ve gone. Not just for you, your supporters can also follow your progress and cheer you on. That’s why we’ve made it extra easy to track your distance through your fundraising page by manually adding your lengths.

Follow these simple instructions:

1. Count your lengths manually or purchase a waterproof fitness tracker for swimmers.

2. Log into your fundraising page using your JustGiving sign in details.

3. Scroll down to your “Latest Updates” and click the green button that says “Log fitness”.

4. Enter the amount you have swam (you will need to enter a value for elevation as this is a standard feature of the fundraising page, this can be 0).

5. Click save and your page will automatically update with you’re new total.